Police say that Barron Alexander, Gosnell’s 22 year-old son, broke into the rear of a home where three men were asleep. One woke up, and a struggle ensued.

“The resident screamed for help, a second male — a second resident from that property — came to assist him. He did have a firearm,” Captain John Przepiorka said, according to CBS Philadelphia.

The second man shot Alexander twice. He escaped through a window but stumbled onto the ground outside. Police found a video game system and cash outside of the home, CBS Philadelphia reported.

Alexander changed his last name after his father’s recent conviction.

Last year, Gosnell was convicted of murder for killing three newborn infants, some of whom died after Gosnell snipped their spinal cords with scissors.

He was also convicted of involuntary manslaughter after an adult female patient died during an abortion procedure. Investigators had found that Gosnell performed hundreds of abortions past Pennsylvania’s 24 week legal limit.

Gosnell’s clinic, which served predominantly poor and minority women, was dubbed a “House of Horrors” by the Philadelphia district attorney. It’s conditions were called “very unsanitary” and “horrendous” in various accounts.

He was sentenced to life in prison with no possibility of parole. Gosnell, now 73, agreed not to appeal the sentence if prosecutors would not seek the death penalty.